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石门寺钨矿是大湖塘钨矿床的北矿段,位于我国下扬子成矿省之江南隆起东段成矿带西部,钦杭结合带的北侧。针对此细脉浸染型钨矿体中金属硫化物中的硫同位素和方解石中的碳、氧同位素进行了测定,结果显示细脉浸染型矿体中黄铜矿样品的δ34S值介于-2.6‰~-0.3‰之间,平均值为-1.31‰;辉钼矿样品的δ34S值介于-1.2‰~0.3‰之间,平均值为-0.53‰。矿体的硫主要来至深部岩浆或者上地幔。方解石δ13 CV-PDB值介于-11.42‰~-5.76‰之间,平均值为-7.06‰;δ18 OV-SMOW的变化范围为7.13‰~16.34‰,平均值为11.79‰,说明成矿流体中的碳主要来源于深部岩浆或者上地幔,并受到有机碳的混合。大湖塘石门寺钨矿段的成矿物质主要来源于大湖塘燕山期S型花岗岩岩浆,但不排除成矿流体在上升的过程中萃取了一部分围岩的成矿物质。
The Shimenji tungsten deposit is the northern ore section of the Dahuotang tungsten deposit and is located in the west of the metallogenic belt in the eastern part of the Jiangnan Uplift in the Lower Yangtze metallogenic province of China and on the north side of the Qinhang-Hangzhou belt. The δ13S value of the chalcopyrite samples in the fine vein disseminated orebodies ranged from -2.6 ‰ for the sulfur isotopes in metal sulfides and carbon and oxygen isotopes in calcite in this veinlet disseminated tungsten ore body ~ -0.3 ‰, with an average of -1.31 ‰. Δ34S values of molybdenite samples ranged from -1.2 ‰ to 0.3 ‰ with an average of -0.53 ‰. Sulfur ore body mainly to the deep magma or the upper mantle. The δ13CV-PDB values of calcite range from -11.42 ‰ to -5.76 ‰, with an average of -7.06 ‰. The δ18 OV-SMOW ranged from 7.13 ‰ to 16.34 ‰ with an average of 11.79 ‰, indicating that in the ore-forming fluid Of the carbon comes mainly from deep magma or the upper mantle and is mixed with organic carbon. The metallogenic material of the Shimenji tungsten deposit in Dahu Tong mainly comes from the S-type granite magma in the Yanshan Period of Dahu Tang, but it does not exclude the ore-forming material extracted from part of the surrounding rock during the ascent of the ore-forming fluid.